摘要
将非线性振动理论中有关安全盆的定义应用于包装振动系统的动力学研究。在对一个具有二次非线性弹性项的包装振动模型加载合理的随机冲击激励后 ,利用蒙特 卡罗方法与龙格 库塔法模拟了系统的安全盆随着随机冲击激励的强度和高斯白噪声的强度而产生的侵蚀现象。研究结果表明 ,随机冲击激励的强度的增加将使系统的安全盆产生高度侵蚀 ,从而使得商品的位移和速度超出某个有界区域而导致损坏 ;然而 ,通过简单地增大阻尼可使系统的安全盆的侵蚀减少 。
In the present paper, safe basin appearing in nonlinear oscillatory theory is applied to the study of packaging dynamics. When a reasonable stochastic excitation is added to a nonlinear oscillatory packaging system with quadratic nonlinear flexibility, the erosion of the safe basin of such system is discussed following the changes of the strength of the stochastic excitation by using the Monte Carlo method and Runge Kutta method. It is shown that the increasing strength of the stochastic excitation will lead to the safe basin's serious erosion and result in the escape from the given bounded region for the commodity's displacement and speed, however, this can be improved by increasing the system's damp.
出处
《包装工程》
CAS
CSCD
北大核心
2003年第2期42-44,共3页
Packaging Engineering
